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January 14th, 2026 :: 2:42 am CST   

Local Weather Report for
Decatur
Illinois, United States

 Current Decatur Weather Conditions Updated January 14th at 1:54 am 
Overcast
Temperature:45°F Dew Point:36°F
Barometer:29.68 inHg Wind:N 21 Mph
Humidity:70.5% Visibility:0M
 
 Decatur Weather Forecast Summary  
 
Today
Jan 14th
Thursday
Jan 15th
Friday
Jan 16th
Saturday
Jan 17th
Sunday
Jan 18th
Cloudy Flurries Cloudy Cloudy Cloudy
40°F
27°F
18°F
36°F
24°F
20°F
12°F
19°F
10°F
 
 Decatur Detailed Weather Forecast  
 
Wednesday, January 14th, 2026
Overnight Temperature: 40°F
Cloudy. Windy at times.
Morning Temperature: 31°F
Cloudy. Wind 20 to 30 mph.
Afternoon Temperature: 24°F
Sunny with cloudy periods. Windy.
Evening Temperature: 22°F
Clear. Windy at times.
Thursday, January 15th, 2026
Overnight Temperature: 19°F
Clear. Windy at times.
Morning Temperature: 23°F
Sunny. Windy at times.
Afternoon Temperature: 24°F
A mix of cloud and sun.
Evening Temperature: 27°F
Cloudy with flurries likely. Windy at times.
Friday, January 16th, 2026
Overnight Temperature: 28°F
Cloudy with a chance of flurries. Windy at times.
Morning Temperature: 34°F
Cloudy. Windy at times.
Afternoon Temperature: 30°F
A mix of cloud and sun.
Evening Temperature: 27°F
Cloudy. Windy at times.
Saturday, January 17th, 2026
Overnight Temperature: 19°F
Cloudy. Windy at times.
Morning Temperature: 18°F
Cloudy. Windy.
Afternoon Temperature: 15°F
A mix of cloud and sun. Windy at times.
Evening Temperature: 13°F
Clear with cloudy periods. Windy at times.
Sunday, January 18th, 2026
Overnight Temperature: 11°F
Clear. Windy at times.
Morning Temperature: 15°F
Sunny with cloudy periods. Windy at times.
Afternoon Temperature: 17°F
Sunny with cloudy periods.
Evening Temperature: 18°F
Cloudy. Windy at times.
Monday, January 19th, 2026
Overnight Temperature: 19°F
Cloudy with clear periods. Windy at times.
Morning Temperature: 22°F
Cloudy. Windy.
Afternoon Temperature: 18°F
Sunny. Windy at times.
Evening Temperature: 14°F
Clear with cloudy periods. Windy at times.
Tuesday, January 20th, 2026
Overnight Temperature: 10°F
Clear. Windy at times.
Morning Temperature: 16°F
Sunny. Windy at times.
Afternoon Temperature: 18°F
Sunny.
Evening Temperature: 20°F
Cloudy. Windy at times.
Wednesday, January 21st, 2026
Overnight Temperature: 21°F
Cloudy with a chance of flurries.
Morning Temperature: 23°F
Cloudy with a chance of flurries. Windy.
Afternoon Temperature: 18°F
Sunny.
Evening Temperature: 16°F
Clear.
Thursday, January 22nd, 2026
Overnight Temperature: 18°F
Cloudy. Windy at times.
Morning Temperature: 28°F
Cloudy. Windy at times.
Afternoon Temperature: 30°F
Cloudy.
Evening Temperature: 26°F
Clear.





 

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This WeatherCity Weather Forecast for Decatur, Illinois, United States is computed using a computer-generated forecast model and should be considered experimental. Please confirm this weather information with your official weather information office

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